Clutch for centrifugal machines.



UNITED STATES PATENT OFFICE.

GUSTAF HOLMGREN, OF NEWARK, NEW JERSEY, ASSIGNOR TO UNITED STATES BUTTER EXTRACTOR COMPANY, A CORPORATION OF NEW JERSEY.

CLUTCH FOR CENTRIFUGAL MACHINES.

Specification of Letters Patent.

Patented may 14. 1907.

Application filed J nly 23, 1901. Serial No. 69,39!-

0 all whom it may concern.-

Be it known that I, GUSTAF IloLnonr-m, a subject of the King of Sweden, and a resident i of Newark, in the county of Essex and State of New Jersey, have invented a new and user ful Improvement in Clutches for Centrifugal Machines, of which the following is a specification.

This invention relates to drivin mechanism, more particularly designed or use in connection with centrifugal cream separators.

The invention seeks to provide reliable quick action and efficient clutch mechanism, whereby the driving wheel and its shaft may be connected and disconnected at the will of the operator.

The invention consists in the construction hereinafter set forth and described in' the claims. l

In the accompanying drawin s,'the invention is shown in connection wit and as ap plied to a centrifugal cream separator.

Figure 1 is a sectional elevation of a centrifugal cream separator and showin the improved clutch in connection therewit Fig. 2 is an elevation partly in section, showing the driving shaft and gear wheels together with the clutch. Fig. 3 is a plan view artly in section of the gear wheel and clutc carried on the driving shaft. v

Referri now more particularly to the specific em odiment of the invention, 1 is the bowl of the centrifugal separator rigidly connected with the worm spindle 2, which is mounted in bearings 3 and 4 of the main frame 5/ The driving shaft 6 is suitably supported in bearings in the frame 5, and carries at one end ear 7, which meshes with and is driven b t e hand wheel 8. On the other end of the shaft 6 is a worm gear wheel 9 having an extended hub 10 and loosely mounted on the shaft. The wheel 9 on the side opposite. to the hub 10 has a circular recess 11.

12 and 13 are two separate and inde ndcnt plates or members of the clutch evice loosely mounted on the shaft 6 and located in the recess 11. The shaft 6 is provided with two lateral projections or cars 15 and 14 arranged to work ainst theinner ends of the plates 12 and 13, t ereby thrusting the lates outward so asto engage the rim 16, wine constitutes the periphery of the recess 11. The

. plates 12 and .13 are respectively provided with half collars 17 and 18' surrounding the shaft 6 Q just beyond the projections Hand 15, and are also provided respectively Wlth lugs 19 and 20 on the outer faces of the collars 1? and 18. (See Fig. l.)

21 is a. pin which asses through a hole 111 the shaft 6, and is 0 sufficient length to engage the lugs 19 and 20.

22 and'23 are pins fixed to the inner end of the plate 13 and projecting loosely into corresponding sockets in the plate 12. These PIIIS merely serve to keep the plates in proper rel ative position with respect to each other, while at the same time permitting the plates to move to and from each other. The plates 12 and 13 have a circumferential movement on the shaft 6, which islimited in one direction by the pin 21, whose projeetin ends engage the lugs 19 and 20 and so lim ts the movement of the lates. The projectlng ends of the pin 21 t us constitute a sto for the plates 12 and 13. A movement 0 the plates, in the other direction throws. them outward so as to engage the rim 16,

When the shaft 6 is rotated, its projections 15 and 14 thrust outward the lates 12 and 13 a ainst the rim 16, thereby 1y clutching 51c wheel 9. When the shaft is turned in the o osite direction, the projections 14 and 15 mitting them to unclutch the wheel 9, the pm 21 at the same time being carried back a. ainst'tlle lugs 19 and 20, thereby locking tl ie plates 12 and 13 on the shaft so as to prevent the shaft from turning, far enou h around relativel to the plates to throw 1; e oppositesides ogthe pro ectlons against the p ates 12 and 13.

In the practical operatlon of the gear wheel 9 and the spindle 2, when the drlvmg of the shaft '6. ceases, thewheel 9 continues to rotate, be' itself driven by the worm on the spmdle 2. movement of the wheel 9 frees the lates 12- and 13 from clutching engagement, ut nevertheless carries these plates ronnd on theshaft 6 until the lugs 19 and 20 strike the pin 21 which stops the plates. If this movement of the would be carried around until the pro ect ons engaged them and threw them out mto clutching engagement with the run 16, thereb violently stopping the wheel 9 or breaking t e parts.

sengage the plates 12 and 13, per

ates were not stopped, they- It is obvious that various chan es in the form and arrangement of the clutc may be made without departing from the spirit of the invention.

What I claim as new and desire to secure by Letters Patent, is:

1. The combination of a shaft mounted in bearings, a wheel mounted loosel upon said shaft and provided with an annufar flange, a plate or member interposed between said shaft and flange and capable of a circumferential movement with relation to the shaft and flange and a lateral projection on said shaft arranged to move into or out of contact with the inner end of said plate or memher when the shaft turns in one direction or It)he other with relation to said plate or mem- 2. The combination of a shaft mounted in bearings, a wheel mounted loose] upon said shaft and provided with an annu ar flange, a plurality of plates or members interposed etween said shaft and flange and each capable of circumferential movement with relation to the shaft and flange and lateral projections on said shaft corresponding in number to said plates and arranged to move into or out of contact with'the inner ends of said plates or members when the shaft turns in one direction or the other with relation to said plates or members.

. 3. The combination of a shaft mounted in bearings and provided with a lateral inte gral projection, a wheel mounted loosely upon said shaft and provided with an annular flange, a plate or member interposed between said s aft and fla e andconcentrically mounted on said sha t so as to be capable of a circumferential movement on the shaft and arranged to be actuated by the projection bearing upon its edge nearest to the shaft so as to engage the fia e when so actuated, and means on the sha for preventing the projection from operating the plate when the shaft or wheel is turned relatively to the other in one direction.

4. The combination of a shaft mounted in bearings and provided with a plurality of lateral integral projections, a wheel mounted loosely upon said sh aft and provided with an annular ange, a plurality of lates or members interposed between said s aft and flange and concentrically mounted on said shaft so as to be capable of a circumferential movement on the shaft, and arranged to be actuated by the projections bearin upon the edges of the plates nearest the she. t so as to engage the flange when so actuated, and means on the shaft for preventing the rojections from operati the plates when the shaft or wheel is turne relatively to the other in one direction.

5. The combination of a shaft mounted in bearings and provided with a lateral integral projection, a wheel mounted loosely upon the said shaft and provided with an annular flange, a plate or member interposed between said shaft and flange and concentrically mounted on said shaft so as to be capable of a circumferential movement on the shaft and arranged to' be actuated by the projection bearing upon its edge nearest to the shaft so as to engage the flange when so actuated, a projection on the plate or member, and a sec ond lateral projection on the shaft for engaging the plate projection when the shaft or wheel is turned relatively to the other in one direction for preventing the plates from being operated to engage with the flange.

6. The combination of a shaft mounted in bearings and provided with a plurality of lateral integral projections, a wheel mounted loosely u on said shaft and provided with an annular ange, a plurality of lates or members interposed between said s aft and flange andconcentrically mounted on said shaft so as to be capable of a circumferential movement on the shaft, and arranged to be actuated by the rojections bearing upon the edges of the fiites nearest the shaft so as to engage the ffange when so actuated, a projection on each plate, and projections on the shaft for enga g with the plate rojections when the shafl dr wheel is turned relatively to the other in one direction for preventing plate from being operated to engage with the ange.

7. The combination of a shaft mounted in bearings, a wheel mounted loosely upon said shaft and provided with an annular flange, two diametrically placed plates or members inte osed between said shaft and flange and ca a le of circumferential movement with re ation to the shaft and flange and two oppositely placed lateral projections on said shaft arranged to move into or out of contact with the inner end of said plates or mem bers when the shaft turns in one direction or {)he other with relation to said plates or memers.

8. The combination of a shaft mounted in bearings, a wheel mounted loosely upon said shaft and provided with an annular flange, two diametrically .placed plates or members inter osed between said shaft and flange and ca a le of circumferential movement with re ation to said shaft and flange, guides for said plates or members and two op ositely placed lateral projections on said s aft for causing radial movement of said plates respectively.

9. The combination of a shaft mountedin bearings and provided with lateral integral projections on o posite sides of the shaft, a Wheel mounted oosely upon said shaft and provided with an annular flange, lates or members interposed between said s aft and flange and on opposite sides of the shaft and capableof a circumferential movement on the shaft and arranged to be actuated by the proieetions on the shaft bearing upon {he edges of 119 plates nearest the shaft, so as Lo engage the Range when so actuated, and pins extending in lines transverse to the slm 1'1 and entering recesses in one or both plates for guiding the planes toward and away from said flange.

10. The eonlhinmion of a shaft mounted in bearings, and provided with two oppositely lneocl lateral projections, a wheel mounied lzmsely on said slml'tfand pnwided with an annular flange, two dun-hing members within said annular flange placed so as to be movable radially npproxinmtely at rigiii angles in the line joinilu the extremities of said proeei ns, when {Tm shaft is at rest, one half rollers on said plates bearing on said shaft and a, second pan" of projections on the shaft arranged to make contact with said half collars when the first named pair of projections is inoperative.

In testimony whereof, I hare signed my name to this speeilication, in the presence of two subscribing witnesses.

. GYSTAF HOLMGREN.

Witnesses HExNIIXG G. TAUBE,

J. M. BATTIN, Jr. 

